A reactor with a belt conveyor for CVD process
By using a belt conveyor and a stainless steel belt substrate in a horizontal reactor, the problem of discontinuous carbon nanotube production was solved, enabling continuous production and automated discharge, and reducing energy consumption and costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU SUSHENG AUTOMATION EQUIP
- Filing Date
- 2025-02-24
- Publication Date
- 2026-06-30
Smart Images
Figure CN224430707U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of production equipment for chemical vapor deposition (CVD) methods, specifically a reaction furnace with a belt conveyor used in CVD processes. Background Technology
[0002] In existing chemical vapor deposition methods, the substrates used to generate deposits are discontinuous in horizontal reactors. For example, carbon nanotubes generated in horizontal reactors in CVD are deposited in containers made of substrate materials such as quartz boats or stainless steel boxes. These containers are arranged one by one in the horizontal furnace and are not interconnected, making it particularly difficult to remove the carbon nanotubes attached to the inner wall of the container.
[0003] Currently, the addition of catalysts and the discharge of carbon nanotubes both require cooling to room temperature before manual operation. This not only increases energy consumption significantly, but also makes it difficult to achieve unmanned automated continuous production under such high-temperature conditions, thus greatly limiting production capacity.
[0004] Carbon nanotubes and carbon nanotube fibers, as emerging cutting-edge materials, have attracted widespread attention and research from the scientific and industrial communities due to their unique physical and chemical properties and broad application potential. Currently, there are three methods worldwide for preparing carbon nanotube fibers using carbon nanotubes: wet spinning, carbon nanotube array spinning, and floating catalytic spinning. Among these, carbon nanotube array spinning produces the highest purity carbon nanotube fibers, but due to the discontinuous and small area of its substrate container, continuous production is not possible, resulting in low production capacity and particularly high prices. In other words, the current technological bottleneck is that the area of the carbon nanotube growth substrate provided by the traditional structure is limited and the operation is intermittent.
[0005] In conclusion, it is urgent to find a solution that can provide an unrestricted growth substrate area for carbon nanotubes and enable continuous production. Utility Model Content
[0006] In view of the problems existing in the prior art, the purpose of this utility model is to provide a reactor with a belt conveyor in the CVD method to solve the problems mentioned in the background art.
[0007] To achieve the above objectives, the present invention provides the following technical solution: The horizontal reactor 1 used for continuous production by chemical vapor deposition includes a discharge device 1A, a belt conveyor 2, and a furnace body 3. The furnace body 3 includes an initial section 5, a reaction section 7, and a discharge section 8. The belt conveyor 2 includes a belt 2A and rollers 4. The belt 2A is the substrate for the CVD-prepared deposits. The belt 2A is surrounded by rollers 4. The rollers 4 include an active roller 41 and a passive roller 42. The belt 2A includes an upper belt 2A1 and a lower belt 2A2. The discharge device 1A is located in the discharge section 8. The chemical reaction products grow on the upper belt 2A1 of the reaction section 7 and are discharged in the discharge section 8 via the discharge device 1A.
[0008] As a further embodiment of this utility model: the reactor 1 is a reactor for preparing carbon nanotubes, and the belt 2A includes a stainless steel belt.
[0009] As a further embodiment of this utility model: the active roller 41 is located in the discharge section 8, and the passive roller 42 is located in the initial section 5.
[0010] As a further embodiment of this utility model: the discharge device 1A includes a roller discharge device 1A1; the belt 2A changes from the upper belt 2A1 to the lower belt 2A2 as the active roller 41 rotates, that is, the belt 2A changes from a horizontal state to a curved state, and the carbon nanotube array on the belt 2A completes the discharge by falling under gravity.
[0011] As a further embodiment of this utility model: the discharge device 1A includes a drawing device 1A2, through which the carbon nanotube array is discharged.
[0012] As a further embodiment of this utility model: the discharge device 1A includes a scraping device 9, which includes a scraper 9A. The scraper 9A is located below the outer side of the belt 2A in the discharge section 8. The carbon nanotubes adhering to the belt 2A are peeled off by the scraping device 9 to complete the discharge.
[0013] In summary, compared with the prior art, this utility model provides a solution for continuous production due to its unique structure using a belt as a substrate. The specific advantages are as follows: 1) Since the belt in the conveyor runs continuously, the substrate area in the CVD method is not limited; 2) Because the conveyor belt is planar, the discharge and cleaning of carbon nanotubes are particularly easy; 3) Low energy consumption. Attached Figure Description
[0014] Figure 1It is a structural schematic diagram of the discharge device 1A, belt conveyor 2 and furnace body 3 that make up the horizontal reactor 1; it is also a structural schematic diagram of the initial section 5, reaction section 7 and discharge section 8 that make up the furnace body 3; it is also a structural schematic diagram of the belt 2A and roller 4 that make up the belt conveyor 2; it is also a structural schematic diagram of the active roller 41 and passive roller 42 that make up the roller 4; and it is also a structural schematic diagram of the upper belt 2A1 and lower belt 2A2 that make up the belt 2A.
[0015] Figure 2 yes Figure 1 AA section view;
[0016] Figure 3 This is a diagram showing the positions of the active roller 41 and the passive roller 42 within the furnace body 3;
[0017] Figure 4 yes Figure 1 View from direction B;
[0018] Figure 5 This is a schematic diagram of the structure of the roller discharge device 1A1;
[0019] Figure 6 This is a schematic diagram of the wire drawing device 1A2;
[0020] Figure 7 yes Figure 6 C-direction view
[0021] Figure 8 This is a schematic diagram of the scraping device 9;
[0022] Figure 9 This is a schematic diagram of the structure of the integral furnace body 3.
[0023] Reactor 1, discharge device 1A, roller discharge device 1A1, wire drawing device 1A2, belt conveyor 2, belt 2A, upper belt 2A1, lower belt 2A2, furnace body 3, roller 4, active roller 41, passive roller 42, initial section 5, reaction section 7, discharge section 8, scraping device 9, scraper 9A. Detailed Implementation
[0024] The technical solutions of the present utility model will be described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0025] Please see Figures 1-9In this embodiment of the present invention, the horizontal reactor 1 used for continuous production by chemical vapor deposition includes a discharge device 1A, a belt conveyor 2, and a furnace body 3. The furnace body 3 includes an initial section 5, a reaction section 7, and a discharge section 8. The belt conveyor 2 includes a belt 2A and rollers 4. The belt 2A is the substrate for the CVD-prepared deposits. The belt 2A is surrounded by rollers 4. The rollers 4 include an active roller 41 and a passive roller 42. The belt 2A includes an upper belt 2A1 and a lower belt 2A2. The discharge device 1A is located in the discharge section 8. The chemical reaction products grow on the upper belt 2A1 of the reaction section 7 and are discharged in the discharge section 8 via the discharge device 1A.
[0026] The reactor 1 is a reactor for preparing carbon nanotubes, and the belt 2A includes a stainless steel belt.
[0027] The active roller 41 is located in the discharge section 8, and the passive roller 42 is located in the initial section 5.
[0028] The discharge device 1A includes a roller discharge device 1A1; as the active roller 41 rotates, the belt 2A changes from the upper belt 2A1 to the lower belt 2A2, that is, the belt 2A changes from a horizontal state to a curved state, and the carbon nanotube array on the belt 2A completes the discharge by falling under gravity.
[0029] The discharge device 1A includes a drawing device 1A2, through which the carbon nanotube array is discharged.
[0030] The discharge device 1A includes a scraping device 9, which includes a scraper 9A. The scraper 9A is located below the outer side of the belt 2A in the discharge section 8. The carbon nanotubes adhering to the belt 2A are peeled off by the scraping device 9 to complete the discharge.
[0031] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In this utility model, it should also be noted that the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to fixed connection, detachable connection, integral molding connection, mechanical connection, or indirect connection through an intermediate medium. The specific meaning of the terms in this utility model can be understood according to the specific circumstances.
[0032] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A reactor with a belt conveyor in a CVD process, characterized in that: The horizontal reactor (1) for continuous production using chemical vapor deposition includes a discharge device (1A), a belt conveyor (2) and a furnace body (3). The furnace body (3) includes an initial section (5), a reaction section (7) and a discharge section (8). The belt conveyor (2) includes a belt (2A) and rollers (4). The belt (2A) is the substrate for the CVD-prepared deposits. The belt (2A) is surrounded by rollers (4). The rollers (4) include an active roller (41) and a passive roller (42). The belt (2A) includes an upper belt (2A1) and a lower belt (2A2). The discharge device (1A) is located in the discharge section (8). The chemical reaction products grow on the upper belt (2A1) of the reaction section (7) and are discharged in the discharge section (8) via the discharge device (1A).
2. A reactor with a belt conveyor in a CVD process according to claim 1, characterized in that: The reactor (1) is a reactor for preparing carbon nanotubes, and the belt (2A) includes a stainless steel belt.
3. A reactor with a belt conveyor in a CVD process according to claim 2, characterized in that: The active roller (41) is located in the discharge section (8), and the passive roller (42) is located in the initial section (5).
4. A reactor with a belt conveyor in a CVD process according to claim 3, characterized in that: The discharge device (1A) includes a roller discharge device (1A1); the belt (2A) changes from the upper belt (2A1) to the lower belt (2A2) as the active roller (41) rotates, that is, the belt (2A) changes from a horizontal state to a curved state, and the carbon nanotube array on the belt (2A) completes the discharge by falling under gravity.
5. A reactor with a belt conveyor in a CVD process according to claim 3, characterized in that: The discharge device (1A) includes a fiber drawing device (1A2), through which the carbon nanotube array is discharged.
6. A reactor with a belt conveyor in a CVD process according to claim 4 or 5, characterized in that: The discharge device (1A) includes a scraping device (9), which includes a scraper (9A). The scraper (9A) is located below the outer side of the belt (2A) in the discharge section (8). The carbon nanotubes adhering to the belt (2A) are peeled off by the scraping device (9) to complete the discharge.